Piezoelectric transducers, state of research
Abstract
Methods for preparing, treating and sintering powders to be used in the production of ceramic elements (coprecipitation, isostatic compression, sintering under shock loading) are reviewed. Faults inherent in a piezoelectric ceramic element are outlined. Perovskite type compounds, analogous to PbTiO3, which are strongly anisotropic and have a very low k31 coupling factor; lead compounds which are strongly anisotropic and give strongly attenuated ceramic elements; PVDF type polymers; electrostrictive materials; composite materials; and polar glass materials and electrets are described. Techniques for metallizing elements to improve the adhesive power of the electrodes and contacts; and adhesives and glues used for manufacturing transducers and composites are considered.
- Publication:
-
In its Mater. Used by Ind. for the Production of Piezoelec. Transducers. The State of the Art of Res. Work Performed in the Field of PZT Ceramics and Ferroelec. Polymers p 3-11 (SEE N85-35344 24-33
- Pub Date:
- June 1984
- Bibcode:
- 1984muip.rept....3E
- Keywords:
-
- Piezoelectric Ceramics;
- Piezoelectric Transducers;
- Research And Development;
- Pretreatment;
- Production Engineering;
- Technology Utilization;
- Electronics and Electrical Engineering